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A Value for the Faraday Based on a High-Precision Coulometric Titration of 4-Aminopyridine

  • Harvey Diehl

Abstract

In the two most recent least-squares adjustments of the fundamental physical constants, B. N. Taylor and his co-workers, 19691 and 19732, call repeatedly for a further experimental determination of this constant. The existing value, 96,486.67 1972 NBS coulombs per mole is based on the silver dissolution work of Craig, Hoffman, Law and Hamer3, and although closely supported by coulometric titrations of benzoic acid4 and of oxalic acid4, it is greater by some 21 ppm than a value calculated from other physical measurements.

Keywords

Potential Drop Abundance Ratio Coulometric Titration Perchloric Acid Solution Freezing Curve 
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Copyright information

© Springer Science+Business Media New York 1976

Authors and Affiliations

  • Harvey Diehl
    • 1
  1. 1.Department of ChemistryIowa State UniversityAmesUSA

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